Actually the 401 is a pretty good little hitter. I started out with the 4081 Npro, and wanted a few different models for "Stashing" purposes. I was totally paranoid about FDA bans, and wanted a fast start on building up supplies.
I bought 10 - E-health cigs from Deal Extreme for $9.00 ea. I was pleasantly surprised when I received them, and they all worked on arrival. (I was expecting a 50% failure rate) I still have them in my back up stash, and use them occasionally.
There is a 401 specific Forum at;
M-401/402 "Mini" & M403 Super Mini - e-cigarette-forum.com • The place for electronic cigarette reviews, news and chat
You'll probably end up getting other models, and maybe even move into heavy duty
mods. If you move on to other models, I suggest you keep all old e-cigs as back-ups. You never know what will happen in the future, and you may decide to experiment with the old parts, and supplies. I keep everything, including the dead
batteries, and burnt out attys.